Which of the following is a correct statement | vedclass

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(A) $Cu^{+} = [Ar] 3d^{10}$ (No unpaired electrons,so it is colourless). $Zn^{2+} = [Ar] 3d^{10}$ (No unpaired electrons,so it is colourless). Therefo

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Aqueous solutions of $Cu^{+}$ and $Zn^{2+}$ are colourless

Vedclass · Answer

(A) $Cu^{+} = [Ar] 3d^{10}$ (No unpaired electrons,so it is colourless). $Zn^{2+} = [Ar] 3d^{10}$ (No unpaired electrons,so it is colourless). Therefore,aqueous solutions of $Cu^{+}$ and $Zn^{2+}$ are colourless. $Cu^{2+} = [Ar] 3d^9$ (One unpaired electron is present,so it is coloured). $Fe^{3+}$ is yellow/brown in aqueous solution. $MnO_4^{-}$ is purple due to charge transfer,despite having no unpaired electrons. Thus,the statement in option $(A)$ is correct.

Which of the following is a correct statement?

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